3,399,
5
ting to prevent relative rotation therebetween, and means to connect said catheter with an infusion system.
2. In a catheter placement unit,
a fitting to function as a handle to perform venipuncture and place a catheter, 5
said fitting having a main passage therethrough and a branch passage communicating with said main passage,
a catheter secured in position in said branch passage and extending therefrom through a part of said main passage and projecting from one end of said fitting,
a cannulated needle telescopically associated around said catheter,
said needle having a slot therein out of which the catheter extends into said branch passage, and 15
a hub on said needle seated in said main passage at the other end of said fitting.
3. In a catheter placement unit,
a fitting to function as a handle to perform venipuncture and place a catheter, 20
said fitting having a main passage therein and a branch passage communicating with the main passage,
a catheter extending from said main passage through one end of said fitting and being secured within said branch passage, 25
a slotted cannulated needle telescopically associated around said catheter which extends out through the needle slot into said branch passage,
a hub on said needle seated in said main passage at the other end of said fitting, and 30
an interlocking association between said noodle and said fitting to prevent rotation of said needle relatively to said catheter when said needle is being withdrawn after placement of the catheter.
4. In a catheter placement unit, 35 a fitting to function as a handle to perform venipuncture and place a catheter,
said fitting having a main passage therein and a branch
passage communicating with the main passage, a catheter extending from said main passage through 40
one end of said fitting and being secured within said
branch passage, a slotted cannulated needle telescopically associated
around said catheter which extends out through the
needle slot into said branch passage, 45 a hub on said needle seated in said main passage at
the other end of said fitting, said fitting having a flattened face overlying the slot in
said needle, and
674
6
said fitting and said hub having confronting flattened faces,
whereby said needle is prevented from rotating with respect to said catheter as the needle is withdrawn after placement of the catheter.
5. In a catheter placement unit,
a fitting to function as a handle to perform venipuncture and place a catheter, said fitting having a main passage therein and a branch
passage communicating with the main passage, a catheter extending from said main passage through
one end of said fitting and being secured within said
branch passage, a slotted cannulated needle telescopically associated
around said catheter which extends out through the
slot into said branch passage, a hub on said needle seated in said main passage at the
other end of said fitting, and a tongue on said fitting extending into the slot of said
needle to prevent relative rotation between the needle
and catheter when the needle is withdrawn after
placement of the catheter.
6. In a catheter placement unit,
a fitting having a passage therethrough connectable to
an infusion system, a catheter projecting from the passage in said fitting by
which said catheter is connected to the infusion
system,
a needle also projecting from said fitting in telescopic relation with said catheter and removable entirely from association with the catheter, and
interlocking means between said fitting and said needle preventing relative rotation between said needle and said catheter until the needle is separated from the catheter.
References Cited
UNITED STATES PATENTS
3,185,152 5/1965 Ring 128—214.4
3,215,141 11/1965 Podhora 128—214.4
3,297,030 1/1967 Czorny et al 128—214.4
3,313,299 4/1967 Spademan 128—214.4
FOREIGN PATENTS 605,067 2/1926 France. 1,092,011 11/1954 France. 265,972 10/1913 Germany.
DALTON L. TRULUCK, Primary Examiner.
